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Cummins/Onan — Check Engine Oil Level

A Cummins/Onan service procedure — check it applies to your exact model before use.

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Before you start

  • IMPORTANT: When using an oil of different maker or viscosity from the previous one, drain old oil. Never mix two different types of oil.

Procedure

  1. 1. Level the engine.
  2. 2. To check the oil level, draw out the dipstick, wipe it clean, reinsert it, and draw it out again. Check to see that the oil level lies between the two notches.
  3. 3. If the level is too low, add new oil to the specified level.

Tools required

  • Dipstick

Source: manual:981-0533 KUBOTA Z402-B Service Manual (9-2000).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.